First thing to realize is that the concept of moving 2 DPs from one or two skill categories into another (to get 1 DP in that new skill category) is not a concept that I came up with. It is part of the core rules in Against the Darkmaster (vsD).
I happen to agree with it, and actually like it.
Having said that, unlike vsD, I don't actually see it coming into play until later levels (i.e. after a character gets above 10 ranks in skills, and their costs per rank goes up (which simulates the diminishing returns found in the d100 based vsD).
Part of why I do not seeing it being used a lot at lower levels is because of the customization that happens when you choose multiple Vocations to make your character. Yes, there can be some min-maxing, but not too much overall.